Radiant energy – Geological testing or irradiation – With sampling
Reexamination Certificate
2005-01-25
2005-01-25
Gagliardi, Albert (Department: 2878)
Radiant energy
Geological testing or irradiation
With sampling
C250S304000, C250S435000
Reexamination Certificate
active
06847033
ABSTRACT:
The invention describes a method and a device for the continual and, in particular, for a fast detection of changes of the concentration of radon gas dissolved in water by means of a transfer into a measuring gas (Rn-222), which can be adopted for a variety of monitoring, control and regulation assignments.The invention is based on the fact that a membrane, which is permeable for the radioactive noble gas radon but extensively non-permeable for water, is circum-flushed on the one side of radon-containing water and on the other side of the carrier gas with, in each case, optimised flow velocities either in parallel or in counter-flowWhen stable peripheral conditions are ensured, the concentration of radon in the measuring gas is directly proportional to the concentration of radon in the water.
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Freyer Klaus
Just Günther
Treutler Hanns-Christian
Gagliardi Albert
Norris McLaughlin & Marcus P.A.
UFZ Umweltforschungszentrum Leipzing-Halle GmbH
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